Bag filling apparatus



NW; 9 J. J. NEUMAN 2,334,120

BAG FILLING APPARATUS Filed Aug. 26, 1942 6 Shees-Sheet l INVENTOR.

JA cos J. NEUMAN "ATTORNEY Nov. 9, 1943. J. J. NEUMAN BAG FILLING APPARATUS Filed Aug. 26, 1942 6 Sheets-Sheet 3 INVENTOR. JACOB J. NEUMA/V l I I l l l I l I l N A T TOR/V5 Y Nov. 9, 1943. J, J. NEUMAN BAG FILLING APPARATUS Filed Aug. 26, 1942 6 Sheets-Sheet 4 INVENTOIL JACOB JNEUMAN ll unl unnunhuhuulfl lu nu unuuumm mw wn mm l u fl a n hn u l n l m m mm 4 ATTORNEY Nave 9, 19 3- JQJ. NEUMAN 2,334,120

- BA G' FILLING APPARATUS Filed Aug. 26, 1942 6 Sheets-Sheet 5 IN VEN 'JOR.

JACOB J. NEUMAN ATTORNEY Nov.9,1 94-3. NEUMAN 2,334,120

BAG FILLING APPARATUS Filed Aug. 26, 1942 v 6 Sheets-$heet 6 INVENTOR. JACOB J. IVEUMAN ATTORNEY FIGS. BY

Patented Nov. 9, 1943 UNITED STATES PATENT OFFICE BAG-FILLING APPARATUS Jacob J. Neuman, South Salem, N. Y. Application August 26, 1942, Serial No. 456,161

18 Claims.

This invention relates to new and useful improvements in bag filling machines and is an improvement over the bag filling machines of prior Patents 1,823,283, granted Sept. 15, 1931, and 2,159,858, granted May 23, 1939.

In the bag filling machines disclosed in the above mentioned prior patents, separate units were employed to hold the bags and to shake the same during the filling operation, each of which units was separately mounted and supported from ceiling beams with the result that the supporting structure for such units could 'not be standardized due to various ceiling heights and beam locations. Thus, erection costsin the field were relatively high. Furthermore, as disclosed in Patent 2,159,858, the bag holding unit and the shaking unit were operated by fluid pressure for which piping, pressure reducing valves, air reservoir, etc. had to be installed in the field. Once the machine was erected, it could not be moved to a new-location without the expenditure of considerable time and labor.

One of the primary objects of the present invention is to overcome the above noted disadvantages in bag filling machines heretofore employed and to provide a combined bag holding and shaking unit which is compact, self-contained and portable.

Another object of the invention is to provide improved means for firmly holding an openmouth bag or like receptacle in an expanded position for feeding of material into the same and also to shake the contents during the filling for the purpose of compacting the material.

A further object of the invention is to provide a unitary machine having both the holder and the shaker operated by a common prime' mover embodied into the machine so that the entire machine may be moved as a unit from place to place as needed-and be quickly and easily installed without requiring dismantling of any of'the parts.

Still. another object of the invention is to provide a novel motor-driven unit for operating the ings in which numerals of like character have stallations.

been used to indicate similar parts throughout the several views.

Referring to the drawings- Fig. 1 is a view in side elevation of the portable I in Fig. 1 with certain parts broken away and in section;

Fig. 4 is an enlarged detail view of 'the bag holding means;

Fig. 5 is a section taken along line 55 of Fig. 4;

Fig. 6 is an enlarged detail of the motor-driven mechanism for operating the bag holding and the shaking means of the filling machine, showing the clutch and clutch operating mechanism;

' Fig. '7 is a section taken along line of Fig.

2 showing the eccentric drive and connection forming the shaking means; and

Figs. 8 and 9 are enlarged detail views of the clutch operating cam device.

In the drawings, referring more particularly to Figs. 1 and 2, the machine comprises a pair of channel members vI 0 and l I suitably spaced apart to accommodate therebetween the usual bag conveyor I2 running over roller l2a and shown with an adjustable mechanism generally indicated as |2b for taking up slack in the conveyor belt. The channel members l0 and II form a supporting base for an upright frame F preferably divided into an intermediate section l3 and a top section M, the latter hingedly supporting at its upper end by means of a transvrse shaft l5 journalled therein, one, end of a laterally projecting arm l6 which extends over the conveyor l2 and supports at its free end the bag holders l1 and I8 and cooperating bag clamping members l9 and 20. The over-all height of the machine should be such that when the bag is clamped on the bagholders I1 and I8 by the clamping members I9 and 20, respectively, there will be a clearance of about 2 or 3 inches between the bottom of the-bag and the conveyor.v Moreover, the channel members Ill and l I are of such a height as to provide the necessary clearance for various conveyor heights that may be encountered in difierent in- As best seen from Figs. 4 and 5, each of the bag-holders l1 and I8 terminates at its upper end in flanges H which extend laterally from opp site sides of the holders and are slidable along tracks 22 formed by angle irons suitably secured to the inner surfaces of downturned edges 23 of the arm i6. Rods 24 supported in lugs 25 formed near the top and at each side of the bag holders Hand l8 are each suitably secured adjacent one end to bag holder l1 and form guiding means for bag holder l8 which is sildable longitudinally along said rods. Each rod is threaded at its free end to receive a threaded nut 26 which serves to limit the extent of relative movement between the bag holders. Between the adjacent lugs ,of the bag holders l1 and I8, springs 21 are provided to absorb shock when the bag holders are brought together and other springs 28 are provided adjacent the free ends of the rods 24 to absorb shock when the bag holders are separated. The bag holder ll is normally urged in a direction away from bag holder l8 by means of tension springs 29 secured at one end to the arm l6 and secured at their opposite ends to the rods 24.

The bag holders l1 and I8 are oppositely disposed with respect to one another and are provided along their outer surfaces with corrugations 32 against which the bag is clamped by the lower ends of the clamping members 19 and 28, provided with rubber pads or the like l9a and 28a, respectively. Intermediate its ends, clamping member I9 is rotatably supported on a transverse shaft 33 mounted in bearings provided by a pair of spaced-apart brackets 34 formed on the bag holder l1 and clamping member 28 is similarly supported on a shaft 35 mounted in bearingforming brackets 36 provided on the bag-holder l8. The clamping member i9 is connected at its upper end by means of shaft 31 to one end of a link 38 which is pinned at its other end as at 39 to lugs 48 formed on the under side of the arm Hi. The upper end of clamping member 28 is similarly connected by means of a shaft 4| to one end of a link 42 in turn connected to the operating meching position as shown in the drawings.

The intermediate section l3 of the upright frame F houses a motor 58 preferably mounted on a bracket 5! hingedly connected as at 52 (Fig. 1), while the top section M of the frame houses the operating mechanism for the bag holders l1 and I8 and clamping members l9 and 28. In order to provideeasy access to the motor 58 and to the bag holder operating mechanism, each of the intermediate and top sections of 1 the; frame is provided with removable side plates 53 and 54 (Fig.2).

Referring to Fig. 2, the top section I4 is formed at one side thereof with an upstanding bracket support 55 for a main shaft 56 which is fixed to the support by means of a pin 61. Opposed roller type bearings 58 carried by the shaft 56 rotatably support a driven member 59 having a drum portion 68, an eccentric portion 6| and an enlarged pulley fly-wheel 62, the latter operatively connected to the motor 58'by means of the endless belts 63 and pulleys 64 carried on the shaft 65 of the motor.

Adjacent one end of the driven member 59, the shaft 56 carries a sleeve 66 forming a bearing for. a clutch supporting plate 61 held in place by a take-up plate 68 bolted or otherwise suitably secured to the end of the'shaft 66. Projecting outwardly from the outer surface of the plate 61 is a crank pin 69 operating a connecting rod 18 which is slidably connected at its other end to rod 43 (Fig. 3). Threaded nuts H engaging complementary threads provided on the rod 43 serve to limit the extent of sliding movement of the connecting rod 18 and a coil spring 12 is provided adjacent one of the nuts II to form a resilient stop.

Cooperating with the drum portion 68 of the driven member 59 is a pair of oppositely disposed clutch members 15 pivotally supported at one end on a shaft-I6 carried by the plate 61 adjacent the crank pin 69. Each clutch member is fitted with a suitable friction lining I1 which conforms to the outer periphery of the drum portion 68, as best seen from Fig. 6. The free ends of the clutch members 15 terminate in flattened straight portions 78 disposedin spaced-apart relation to receive therebetween a cam 19 rotatably mounted on a shaft 88 also carried by the plate 61 but diametrically opposite the shaft 16. Springs 8| on guide rods 82 cooperate with the clutch members 15 to clamp thevlatter against the periphery of the drum 68 for rotation of the clutch members and crank plate 81 as a unit, and the cam 19 cooperates with the flattened straight ends 18 of said clutch members to spread the latter apart and disengage their linings 11 from the drum portion 68.

The clutch cam 'l9 is formed with a lever portion 83 having a channel 84 along one edge thereof open at one end and terminating at its other end in a stop'85 (Figs. 8 and 9) adjacent which one wall of the channel 84 is provided with a cutout portion 86 for the purpose hereinafter set forth.

0n opposite sides thereof, the top section I4 is provided with sleeve bearings 88 and 89 in which vertical shafts 98 and 9! are joumalled, each shaft carrying at its upper end a separate cam operating arm 92 and 93, respectively, adapted to cooperate with the cam lever 83. Each of the shafts 98 and 9| also carries at its lower end a separate lever 94 and 95, respectively, operatively connected together by means of clevises 96 and a transverse rod 91 extending beneath the top section l4. The transverse rod 91 is adapted to be reciprocated to impart angular rotation to the shafts 98 and 9| and bring the cam operating arms 92 and 93 into and out of alignment with the channel 84 of the cam lever 83. The cam operating arms 92 and 93 are so disposed with respect to one another that when one of the cam operating arms is moved into alignment with the channel 84 of the cam lever, the other cam operating arm is moved out of alignment, and vice versa. Adjustable stops formed by the clamping screws 98 on the operating arms 92 and 93 and by lugs 99 arranged in opposite sides of the top section H -of the a frame insure accurate alignment of the operatto the rod 91. Movement of the rod 91 in the opposite ,direction against the tension of the spring I is brought about by means of a flexible cable I02 secured at one end to the eye member IOI. The cable runs over pulleys I03 and I04 (Figs. 1 and 2) and is secured at its opposite end to a lever I05 carried by the inner end of a shaft I06 journalled in a sleeve bearing I01 supported by channel member Ill. The outer end of the shaft I06 has secured thereto a foot' pedal I08 adapted to be depressed to pull the cable I02.

Thus, with the foot pedal depressed, the cam operating arm 93 is brought into alignment with the cam lever 83 while the cam operating arm 92 is brought out of alignment with said lever.

Referring to Fig. '7, the shaking mechanism for the bag comprises a vertical lever H0 pivotally connected at its upper end to a pin III supported in the arm I6, said lever terminating at its lower end in a yoke II2 embracing the eccentric portion 6I of the driven member 59. Springs II3 housed in sockets IIfl formed on the top section I l of the frame F resiliently support arm I6. The compression of the springs II3may be so adjusted by set screws II5 that when no bag or an empty bag is clamped on the bag holder I1 and I0, the arm I6 is raised sufficiently toprevent the top of the yoke II2 from engaging the eccentric portion 9! with the result that no shaking action will be imparted to the arm I6, as the lever H0 will merely oscillate about the pivot pin III. However, as soon as the bag is partly filled, the additional weight compresses the springs H3 and the yoke is brought into contact with the eccentric portion BI to shake the arm I6 up and down and in contionary shaft 56. The crank plate 61 is normally prevented from rotating with the driven member '59 by one or the other of the cam operating arms 92 and 93 in engagement with the channel 84 of the cam lever '50 that the clutch members I5 are disengaged from the drum portion 60 of the driven member 59. With the foot pedal I08 depressed and the cam operating arm 93 in engagement with the cam lever 83 as shown of the cam lever 83, the cam 19 is free to turn on the shaft and the springs M will force the clutch members 15 together into engagement with the drum portion 60 of the driven member 59 to rotate the crank plate 61 through 180, or one-half a revolution when the cam operating arm 92 enters the cam channel, 83 to rotate the cam I9. This rotational movement of the cam 19 disengages the clutch members 15' from the drum portion 60 and the cam operating arm 92 comes into abutting engagement with the cam stop on the cam lever 83 to arrest rotational movement of the crank plate G'E.

During this rotation of the crank plate 61, the crank pin 69 thereof has pulled connecting rod I0 toward the right which first rocked clamping member 20 on its shaft 35 into clamping ena ement with the bag holder I8, then moved the latter toward the right until it contacted and compressed springs 28, after which the bag holder I! has also been pulled in the same direction. Inasmuch as the top of the clamping member I9 is connected to a'relatively fixed point on the arm I6, while the fulcrum 33 of said clamping member has moved with the bag holder H, the movement imparted to the bag holder I1 will rock the clamping member I9 into clampin engagement so that the mouth of the bag is thus distended and clamped to both of the bag holders I7 and I8 ready to be filled with material fed from a conventional hopper, not shown, through a filling opening I20 provided in the arm I5, as clearly shown in Figs. 1, 3 and 5. 7

As the filling proceeds, the weight of the bag overcomes the tension of the springs II 3 which normally hold the arm I0 in slightly raised p sition and said springs are compressed to bring the top portion of the yoke II2 into engagement with the eccentric portion SI of the driven member 59 to impart up and down shaking movement to the arm I6 to shake the bag together with its contents.

When the'bag has been filled, the operator depresses the foot pedal I08 which, through the medium of the cable I02, pulls rod 91 against the tension of the spring I00 to rotate the shafts and ill in a clockwise direction as viewed in Fig.

3 to move cam operating arm 92 out of engagement with the cam lever 83 and move cam operating arm 93 into alignment for engagement with said cam lever. Upon disengagement of the cam operating arm 92 from the cam lever 83, the

clutch members 75 are again brought into engagement with the drum portion 60 by the springs BI and the crank plate 61 is rotated through another until the cam operating in Figs. 1 and 6, since the crank pin 69 on the plate 61 is at a position nearest-the bag holders I1 and I8, the latter will occupy the position shown in Figs. 1, 3, 4 and 5, with the lower ends of the clamping members I9 and 20 away from the holders I1 and I8, respectively.

The operator slips the open mouth of the bag or like receptacle between the bag holders and the clamping members and then releases the foot pedal I08 to allow spring I00 to move rod 91 toward the right. 'This movement of the rod 91 rotates shafts 90 and 9| in a counterclockwise direction as viewed in Fig. 3 to move cam operating arm 93- out of engagement with the cam lever 83 through the opening 89 in one wall of,

the cam channel 84 and move cam operating arm 92 into alignment with the cam lever. As

i the other clamping member 20 has also been released, the weight of the filled bag will cause the bag to slide oif both of the holders. Continuedmovement of the connecting rod T0 to the left moves the bag holder I8 towards the bag holder I! and the parts finally come to rest in the position .shown in the drawings with the bag holders in contracted condition ready for the operator to place another bag thereon.

It'is to benoted that during the operation of soon as the cam operating arm 93- moves clear' the mechanism, the stop 85 of the cam lever 83 is brought into engagement with one or the other of the cam operatingarms 92 and 93 with very little shock for thereason that before this ac' tion takes place, the clutch members 15 are wholly disengaged from the drum portion 60 by theturning action imparted to the cam 19 by engagement of the cam operating arm in the cam channel 84 so thatonly the inertia of the "rotating parts must be overcome. Moreover, the

springs 8| may be so adjusted that the clutch takes hold gradually and the crank plate 61 and the mouth of a bag or the like, clamping members pivotally mounted on said bag-holding members adapted to clamp the bag against said bagholding members, and means including a rotatable crank and a reciprocatable connecting rod for moving said bag-holding members towards and away from each other and for moving said clamping members towards and away from said bag-holding members.

2. In a bag-filling machine, in combination, movable bag-holding members for insertion into the mouth of a bag or the like, clamping members pivotally mounted on said bag-holding members adapted to clamp' the bag against said bag-holding members, reciprocatable means for moving said bag-holding members towards and away from each other and for moving said clamping members towards and away from said bag-holding rotational movement of the crank plate 61 either from the position shown in Fig. 1 when ,the bag holders are in contracted condition, or from the diametrically opposite position when such bag holders are in expanded position, the distance through which the crank pin 69 moves will increase gradually during the first quarter revolution and will likewise gradually decrease during the second quarter revolution thereby insuring easy starting and stopping of the operating crank] Furthermore, due to the novel crank drive forthe bag holding means, there is a great multiplication of the force applied by the motor 50 through the clutch when the loadis the heaviest which permits th use of a relatively small motor and saves wear on the clutch. -At the starting. point, when the crank pin 69 occupies the position shown in Fig. 1, the starting friction of the clamp on its pivot 35 and of the bag holder I8 on the tracks 22 must be overcome. As the 'crank pin 69 approaches its diametrically opposed stopping point where several loads are encountered, namely tightly clamping the bag on the bag holders and compressing the springs 28 and 29, the pull of the connecting rod 10 will gradually increase and at the stopping point of the crank pin 69 the available force will be theoretically infinite. 1

It be seen from the foregoing that not only have I provided a unitary structure embodying bag holding 'means and shaking means operated by a common motor, but I have also provided novel operating mechanism for the bag holding means which produces a simple harmonious. motion insuring easy starting and stopping of the bag holding means without requiringany limiting stops. Moreover, the entire machine is selfcontained and has both the bag-holding means and shaking means thereof operated by the same prime mover which requires only an electrical outlet to render the machine ready to operate.

No claim is made in the present case to the structure of the bag holding and clamping means disclosed as the same .forms the subject matter of a separate application Serial No. 460,357 filed October 1, 1942.

From the foregoing it is-believed that the construction, operation and advantages of my invention may be readily understood by those skilled in the art' without further description, it

being borne in mind that numerous changes may be made in the details disclosed without departing from the spirit of the invention as set out in the following claims.

What I claim is:'

1. In a bag filling machine, in combination,

movable bag-holding members for insertion into members, and means including intermittently rotatable crank means for imparting intermittent reciprocatory movement to said reciprocatable means.

3. In a bag-filling machine, in combination, a pair-0f relatively movable bag-holding means for insertion into the mouth of a bag orthe like, clamping members pivotally mounted to clamp the bag against said bag-holding means, reciprocatable means for moving said bag-holding means towards and away from each other and for moving said clamping members towards and away from said bag-holding means, rotatable crank means for reciprocating said reciprocatable means, a prime mover adapted to rotate continuously, and clutch means operable to connect and "disconnect said crank means and said prime mover.

4, In a bag-filling machine, in combination, a pair of relatively movable bag-holding means for insertion into the mouth of a bag or the like, clamping members pivotally mounted to clamp the bag against said bag-holding means, reciprocatable means for moving said bag-holding 'means towards and away from each other and for moving said clamping members towards and away from said bag-holding means, a rotatable member, means for driving said rotatable membercontinuously, a crank wheel operatively connected. to said reciprocatable means to reciprocate the latter, clutch means carried by said crank wheel and adapted to connect and disconnect said crank wheel and said rotatable member, and means for actuating said clutch means.

5. In a bag-filling machine, in combination, oppositely disposed bag holders movable towards and away from each other and adapted to be inserted into the mouth of a bag or thelike, clamping members pivotally mounted on said bag holders and adapted to be moved towards and away from said bag holders to clamp and release, respectively, the said bag, a rotatable crank wheel and connecting rod for imparting reciprocatory movement to said bag holders and clamping members, a rotatable drum coaxial with said rotatable crank wheel, driving means for said drum, clutch means carried by said crank wheel and embracing the periphery of said drum,,means'normallyurgingsaid clutch means i ing clamping and releasing positions of said clamping members.

6. In a bag filling machine, in combination, oppositely disposed bag holders movable towards and away from each other and adapted to be inserted into the mouth of a bag or the like, clamping members pivotally mounted on said bag holders and adapted to be moved into bag clamping and bag releasing positions, a rotatable crank wheel and connecting rod for moving said bag holders towards and away from each other and simultaneously actuating said clamping members to bag'releasing and bag clamping positions, respectively, a rotatable drum coaxial with said crank wheel, driving means for said drum, clutch means carried by said crank wheel and embracing the periphery of said drum, means normally urging said clutch means into clamping engagement with said drum to drive said crank wheel, movable cam means carried by said crank wheel and adapted to disengage said clutchmeans from said drum, and a pair' of cam operating members disposed diametrically opposite, one another relative to saidcrank wheel and movable into and out of the path of said cam means.

7. In a bag filling machine, in combination,

oppositely disposed bag holders movable towards drum, clutch means carried by said crank wheel and embracing the periphery of said drum, means normally urging said clutch means into clamping engagement with said drum to drive saidcrank wheel, movable cam means carried by said crank wheel and adapted to disengage said clutchmeans from said drum, a pair of cam operating members disposed diametrically opposite one another relative to said crank wheel and movable into and out-of the path of said cam means, and means operatively connecting said cam operating means for movement ofone of said cam operating means into the path of said cam means and simultaneous movement of the other of said cam operating means out of the path of said cam means.

8. In apparatus of the class described including bag holding means movable selectively to bag engaging and bag releasing positions; the combination of a rotatable crank wheel, a prime mover, means operable to connect and disconnect said crank wheel and prime mover to impart intermittent rotational movement to said crank wheel, and means operatively connecting said crank wheel and said bag holding means.

9. In apparatus of the class described including bag holding means movable selectively to bag engaging and bag releasing positions; the combination of a rotatable crank wheel, a rotatable drum, driving means for said drum, a pair of oppositely disposed clutch members carried by said crank wheel and embracing the periphery of said drum, means normally urging said clutch means into clamping engagement with said drum for rotation of the crank wheel, cam means operable to disengage said clutch means from said drum at each 180 of rotation of said crank 10. In a machine of the class described ineluding bag holding means movable selectively to bag engaging and bag releasing positions; the

combination of a rotatable crank wheel. a rotatable drum, driving means for said drum, a pair of oppositely disposed clutch members carried by said crank wheel and embracing the periphery -of said drum, means normally urging said clutch members into clamping engagement with said drum for rotation of the crank wheel, a movable cam carried by said crank wheel and adapted to disengage said clutch members from said drum, an operating lever for said cam projecting beyond the periphery of said crank wheel, a pair of arms mounted adjacent opposite sides, respectively, of said crank wheel and movable selectively into and out of the path of movement of said lever to actuate said cam and arrest rotational movement of said crank wheel at each 180 of rotation, and means operatively connecting said crank wheel and said bag holding means.

11. In a machine of the class described includ ing bag holding means movable selectively to bag engaging and bag releasing positions; the combination of a rotatable crank wheel, a rotatable drum, driving means for said drum, a pair of oppositely disposed clutch members carried by said crank wheel and embracing the periphery of said drum, means normally urging said clutch members into clamping engagement with said drum for rotation of said crank wheel, a movable cam carried by said crank wheel and adapted todisengage said clutch members from said drum, an operating lever for said cam projecting beyond the periphery of said crank wheel, a pair of arms mounted adjacent opposite sides, respectively, of said crank wheel and movable selectively into and out of the path of movement of said lever to actuate said cam and disengage said clutch members from said drum at each 180 of rotation of said crank Wheel, a cam channel in said operating lever adapted to be engagedby said arms selectively, to arrest rotational movement of said crank wheel, and means operatively connecting said crank Wheel and said bag holding means.

' tion, said bag holding means being movable respectively to bag clamping and bag releasing positions, a rotatable member mounted in said frame and having a drum portion and an eccen-' tric portion, means for driving said rotatable member continuously, a crank wheel coaxial with said rotatable member, means operatively connecting said crank wheel to said bag holding means to actuate the latter, clutch means adapted to cooperate with the drum portion of said rotatable member and operable selectively to connect and disconnect said crank wheel and said rotable member, spring means normally maintaining said horizontal support in slightly raised position and adapted to be compressed by the weight of a bag being filled, and means carried by said horizontal support adapted to cooperate with the eccentric portion of said rotatable member upon compression of said spring means to impart vertical vibratory movement to said horizontal support and shake the suspended bag together with its contents.

13. A portable machine for supporting bags or the like for filling comprising a frame having-a supporting base and a vertical housing, a laterally extending arm hingedly secured at one end for vertical swinging movement to the upperend of said housing, bag holding means slidably mounted on said arm adjacent the free end of the latter to permit a bag to be suspended therefrom for filling and being movable respectivelyto bag holding and bag releasing positions, a rotatable member in said housing having a drum portion and an eccentric portion, a motor in said housing having a driving connection with said rotatable member to rotate the latter continuously. a rotatable crank wheel adjacent said rotatable member, a connecting rod driven by said crank wheel and operatively connected to said bag holding means to move the latter from one position to the other and vice versa, a friction clutch carried by said crank wheel and adapted to cooperate with said drum portion to drive said crank wheel, means normally maintaining said clutch in frictional engagement with saiddrum portion, cam means carried by said crank wheel and movable to disengage said clutch from said drum portion, separate cam operating means in said housing arranged diametrically opposite one another relative to said crank wheel and mounted for movement into and out of the path of said cam means, mechanism operatively connecting said cam operating means together for movement of one of said cam operating means out of the path of saidocam means to permit engagement of said clutch with said drum portion and simultaneous'movement of the other of said cam operating means into.tlie path of said cam means for disengagement of said clutch from said drum and braking of said crank wheel, whereby said crank wheel is driven intermittently, spring means normally maintaining the free end of said laterally extending arm in a predetermined position relative to a horizontal plane and permit the same to be lowered slightly by the weight of a bag being filled, and means cooperatbag holding means movable respectively to bag holding and bag releasing positions, a crank wheel and connecting rod unit for moving said bag holding means from one position to the other and vice versa, driving means for said unit, and means operable to connect and disconnect'said driving means and said unit at each of rotation of the crank wheel corresponding to bag holding and bag releasing positions, respectively, of said bag holding means.

15. In a machinev of the class described including bag-holding means movable selectively to bag a bag or the like to be suspended therefrom tor filling; the combination of rotatable means including a drum portion and an eccentric portion, driving means for said rotatable means, and motion transmitting mechanism including means cooperating with the drum portion of said rotatable means to move said bag holding means from one position to the other and vice versa, and means cooperating with the eccentric portion otits free end to permit a bag to .be suspended therefrom for filling, means normally maintaining said arm in a substantially horizontal plane and permit the same to be tilted slightly by the weight of a bag being filled, andmeans operatively connected to said arm and operable when the latter is in tilted position to oscillate said arm on its hinge whereby to shake a suspended bag and its contents during filling.

17. Apparatus of theclass described comprising, in combination, a portable structure including a supporting base portion, an upright housing portion, and a laterally extending substantially horizontal top portion secured at one end to the upper part of said upright portion; bag holding means carried by said horizontal top portion adjacent the free end of the latter and movable selectively to bag engaging and bag releasing positions; and mechanism in said housing portion including a rotatable crank element operatively connected to said bag holding means and rotatable intermittently to move said bag holding means from one position to the other and vice versa. I

18. Apparatus of the class described comprising, in combination, a portable structure including a supporting base portion, an upright housing portion and a laterally extending substantially horizontal top portion hingedly secured at one end to the upper part of said upright portion;

bag holding'means carried by said horizontal 7 top portion adjacent the free end of the latter to permit a' bag to be suspended-therefrom for filling and being movable selectively to bag engaging and bag releasing positions; means normally maintaining the free end of said horizontal tatable means; means-operatively connected to said bag holding means and cooperating with the drum portion of said rotatable means to move said bag holding means from one position to the other and vice versa, and means operatively connected to said horizontal top portion cooperating with the eccentric portion of said rotatable means when the free end of said top portion is in lowered position to oscillate the latter on its hinge whereby 'to shake a suspended bag and its contents.

' JACOB J. NEUMAN. 

